ES (Emergency Service) Trunks

From NENA Knowledge Base

ES (Emergency Service) Trunks are message trunks capable of providing ANI, connecting the serving central office of the 9‑1‑1 calling party and the designated E9‑1‑1 Control Office.

Relevant NENA Documents


NENA 03-502, Trunking for Private Switch 9-1-1 Service Technical Information Document (TID)